Cash register



May 23, 1944. n. K. HUGHES :TAL

CASH REGISTER 7 Filed lay 23, 1942 FIG. .1

2 Sheets-Sheet 1 1/IllIII/dillIII/I/I/llltl/llflllllllllllllllf llllflf Daniel K. Hughes and Joseph J. Klostcrmgn, Dccd By Mary Kloncrman,

Exccutrix lhVQfltOI'l Thei Attorney y 3, 1944. D. K. HUGHES ETAL. 2,349,660 CASH REGISTER Filed m 23, 1942 2 Sheets-Sheet 2 77 l 4/44- FIG.6 W FG. 7 I62 //6 E/W 76 I Daniel K. Hughes and. Joseph J. Klostcrman, Dccd By Mary Klostcrman,

Exccutrix' lnven tors Their Attorney Patented May 23, 1944 CASH REGISTER Daniel K. Hughes, Dayton, Ohio, and Joseph J. Klosterman, deceased, late of Dayton, Ohio, by Mary Klosterman, executrix, Dayton, Ohio, assignors to The National Cash Register Company, Dayton, Ohio, a corporation of Maryland Application May 23, 1942, Serial No. 444,222

3 Claims.

This invention relates to cash registers and accounting machines and has more particular reference to novel interlocking devices affecting the printing mechanisms of such machines.

The printing mechanism of the present invention is adapted to be used in connection with key-operated or press-down-keys types of registers generally and, as illustrated in the accompanying drawings, is particularly well suited for machines of the types disclosed in application for Letters Patent of the United States, Serial No. 226,690, filed August 25, 1938, by Daniel K. Huges, which issued into Patent No. 2,297,961 on October 6, 1942, and in application for Letters Patent of the United States, Serial No. 207,244, filed May 11, 1938, by Frank R. Werner, which issued as Patent No. 2,279,805 on April 14, 1942.

Machines of the above type are generally used in connection with business systems in which checks or slips are manually prepared for each customer by writing on said slips the various items purchased and the total amount to be charged therefor. The slip is then inserted into the machine, and the total amount thereon is entered into the machine, resulting in such amouint being added upon the totalizer and printed upon said slip. Each slip bears printed instructions to the customer to pay only the printed amount on the slip, thereby making it imperative to record such amount in the machine before receiving payment thereof.

Heretofore, in machines of this type, it was possible for the operator to partially operate the machine by depressing the keys and holding said keys in their depressed position, which releases the printing hammer for operation, and then manually operating said printing hammer any number of times to fraudulently print amounts on a plurality of inserted slips, without recording such amounts on the totalizer of the machine. The instant invention provides novel interlocking means for rendering the printing hammer operable only once during each operation of the machine, thus preventing any manual operation of the printing hammer and assuring that the amount printed is properly recorded on the totalizer.

In some instances. it is desirable to operate the machine without printing on an inserted slip. and consequently at such times there is no .need for having the printing mechanism operate. The present invention, therefore. provides means for rendering the printing mechanism inoperable when the machine is operated without a slip inserted therein.

It is, therefore, an object of the invention to provide improved and simplified means for preventing more than one operation of the printing mechanism during an operation of the machine.

Another object of the invention is to provide an interlocking means, which is actuated when the machine is operated, to prevent more than one operation of the printing hammer.

Another object of the invention is the provision, in mechanism of the class described, of an interlock which has only a few parts and is posi-' tive in its action and hence inexpensive to manufacture.

A further object of the invention is to provide novel means for rendering the printing mechanism inoperable when the machine is operated without a slip therein.

A still further object is to provide means for rendering the printing mechanism operable once during each operation of the machine with a slip therein.

With these and incidental objects in view, the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

Of said drawings:

Fig. 1 is a section through the machine, showing the differential drive mechanism and the printing mechanism actuated thereby.

Fig. 2 is a detail of the feeling member for controlling the operativeness of the printing mechanism and a portion of the interlocking means for preventing more than one operation of said mechanism during a machine operation.

Fig. 3 is a detail of the mechanism for actuating the printing hammer.

Fig. 4 is a detail of the printing hammer and a portion of the means for actuating the same.

Fig. 5 is a section, in enlarged scale, on line 5-5 of Fig. 3, looking in the direction of the arrows.

Fig. 6 is a top plan view of the paper chute and the feeling member for coacting therewith to control the operativeness of the printing hammer.

Fig. 'I is a facsimile of the slip or check used with the illustrated machine.

Fig. 8 is a perspective view of a portion of the machine embodying the invention.

General description frames, while the other end of said rod 6'! is 'larly supported by an arm of a segment The preferred form of the present invention is illustrated herein as applied to a key-operated (nelther Whlch 15 shown but hke the arm 63 or .ipressdowmkeyn type of cash register and the segment 59) also freely mounted on vided with a luralit of denominational rou s the rod Depressicrtof key 54 engages the or sets of kegs. Asyin most machines i mouth of the slot 68 wlth the rod 67, and contype depression of one or more amount keys tinued depression of the key rocks the rod 61 operates the register to set indicators to display and h segment 69 Clockwlse dlstance come" the amount of the transaction and adds the spondmg to the Value of the key 54 depressed amount on th totalizen In addition t these The differential adjustment WhlCh the rod 51 functions, the present invention provides a prin @1161 the Segment 59 Tecelve, t the depres' ing mechanism to print the amount on an $1011 of the keys 64, is transmitted by means to serted slip. be presently described to the type wheels and sin th present i ti relates more the totalizer wheels. This means includes teeth ticularly to the printing mechanism, illustrations formed on the segment 69, which mesh With e and descriptions 0f th indicating mechanism of a plurality of pinions 'Il (only one of which 1s and th t tan are tt fr m the drawings shown) secured to a transmission shaft '52 suitand specification comprised in this application. ably Journaled in the machine Side frames: One

More specifically, the present invention relates of the other P 1 5 7| C MTO S the actuat oh 0f to interlocking m a b t th printing balm the totalizer, which is fully shown and described mer and the means for actuating the same. The in the above-mentioned W e p e t nd invention also in l d s means for preventing therefore will not be described herein. Another operation of the printing ha h t one of the pinions 1| meshes with a rearwardly chine is operat dith t a slip therein, extending toothed arm of a double-ended segment l3 pivotally mounted on the rod H3. A forwardly extending toothed arm of the segment Only those details of the printing mechanism 73 meshes with teeth on a gear 74 to impart dif- Detailed description and. the means for actuating the same which ferential movement thereto corresponding to the are necessary for an understanding of the invalue of whichever key 64 is depressed. The stant invention will be described herein. For gear 76 is pivotally mounted on a rod 15, suitfurther details of these mechanisms, reference ably supported in the machine, and meshes with may be had to the above-mentioned patents of a pinion 16 secured to a type wheel 11, both said Hughes and Werner. pinion and said type wheel being loosely mounted on a shaft .78 journaled in a pair of printer side Framework frames 19 and an. The gear 14 will, through The main body of the machine is supported the pinion H5, impart differential adjustment to between a p 0f e 1 1 yp 0 de frames the type Wheel corresponding to the value of the (not shown) supported on a base 60 secured to depressed key 64. a back plate 6.! (Fig. 1).

A suitable casing or cabinet 62 encloses the 9 Key coupler framework of the machine, the casing having an Depression of a key 64 also rocks a key coupler upward extension to form a cupola or dome 63 9! (Fig. 1) counter-clockwise. The key coupler to enclose the indicators. The lower portion 9! normally lies across all of the keys M, to the of the casing .is suitably formed to accommodate rear of the rod 55, and maintains the keys in a cash drawer, which is not shown herein, as it their h me p s i n a dete m n y he a e has no bearing on the present inventio to. The coupler 9| is carried by a pair of arms The cabinet 62 is provided with openings for 92 (only one of wh h i h wn pivotally access t certain parts of the mechanism, such mounted on a rod 93 secured in the machine side penings have 1 1 or doors t locks t prevent frames. The limit of counter-clockwise movenauthori ed persons from having access t th ment of the coupler is reached when the outer inne parts f th m hi e, I end of the key reaches its limit of downward Keyboard travel, whereupon the operator releases the key and the weight of the key coupler 9i rocks the The full complement of the keyboard of the key clockwise to restore it to its normal undemachine selected to illustrate the present inpressed position. The key, on its restoring movevention includes a plurality of denominational ment, causes the type wheel 11 associated therebanks or groups of amount key levers 6d, the with to be returned to its zero position. forward ends of which bear captions designating The totalizer is engaged with the actuators the values assigned to the different keys. As the upon the downward travel of the depressed key, corresponding keys of each of the denominato record the amount corresponding to the value tional groups of amount keys are substantially of such key, and is disengaged from the actuator alike, but one group of keys will be described upon the restoring movement of the key 1 herein pressed, all of which is shown and described in Difi rential mechanism the before-mentioned Hughes patent. The keys '64, illustrated in Fig. 1, are the tens Printing echanism of cents keys, all of which are journaled intermediate their ends on a universal rod 55 extending between and supported in the machine side frames. The rearwardly extending arm of each '70 of the keys 64 is provided with a diiferential cam slot 66 open at one end and adapted .to cooperate theref will now be described With a od 6 e od 67 is Supported at One The impression hammer comprises a pair of end by an arm 63 of a segment .69 freely mounted spaced arms 35 and 96 (Figs. .1 and 4) pivoted n a o 0 po ed by h machine s on a cross rod 91 secured in the frames 19 and After the type wheels 17 are adjusted through the depression of keys 64, an impression hammer is operated to take an impression from said wheels onto an inserted slip 9i (Fig. 6,). The impression hammer and the actuating means 90. The arms 95 and 96 have formed integral therewith a cross brace 99. An inverted channel bar 99,*secured to the under side of the cross brace 99, carries a platen I adapted to be rocked into contact with the type on the type wheels 11 to take an impression therefrom. A spring IOI (Fig. 4), fastened at one end to the arm 96 and at its other end to a stud I02, to be described later, normally serves to hold the platen I00 away from the type wheels 11.

Access to the printing mechanism to change the ribbon and for other legitimate purposes may be had by opening a hinged lid or door I03 (Fig. 8). I a

The means for actuating the printing hammer will now be described.

An arm III is pivotally mounted on the rod 93 and isshaped to embrace the free end of the key coupler 9I, so that, when the key coupler is rocked counter-clockwise upon depression of the key 64, the arm III will receive such counter clockwise movement, and, when the key coupler BI is allowed to restore in a clockwise direction to its home position, the arm III will be moved clockwise to its home position, shown in Fig. 2.

This arm III is connected by link H2 to a lever I I3 secured to a shaft H4 suitably journaled in the printer frames 19 and 80. This lever H3 (Figs. 2 and 3) is connected by link I I5 to a lever I I6 pivoted on the rod 91.

From the above connection, it will be clear that the counter-clockwise movement of the arm III is. transmitted through the. train of mechanism just described to drive the lever H6 in a clockwise direction and that the return clockwise movement of the arm III will drive the lever H6 counter-clockwise to itsv normal position.

The lever H6 has a hub H0 (Fig. 5), upon which is pivoted a hammer-cocking pawl H1 (Figs. 2 to 5) having a shoulder H9 adapted to coast with a flange I I9 of an arm I pivoted on the rod 91. The arm I20'carries the previouslyrnentioned stud I02, to which is secured one end of the spring IOI, the other end of said spring being secured to the arm 95 to hold the printing hammer platen I00 normally away from the type wheel. 11, as previously described. This hammercocking pawl H1 has a tail I22 normally held against an adjusting screw I23 by a spring I2I. This adjusting screw I23 is carried by a flange I24 of an arm I26 having a shouldered stud I09 projecting through the hub H0 of a lever H6. This stud I09 has a large head to retain the pawl H1 in the proper position on the hub I I0. By means of this construction, there can be independent pivoting of the hammer-cocking pawl H1 and the arm I as they are moved towards the right (Fig. 3) by the clockwise movement of the lever H6.

The arm I25 carries a roller I21, which cooperates with a cam slot I28 in a link I29 carryme: a stud I30, by means of which this link I29 is pivoted to the lever H6. The link I29 is also pivoted near its upper end to an arm I44 (Fig. 4), which in turn is pivotallymounted on a stud I45 secured to the frame 19. A spring I49 is connected to a stud I41 secured to the arm I44 and to a stud I48 on a buffer arm I08 pivoted at I01 to the arm I20, and is adapted to actuate the printing hammer to take an impression from the type wheels 11 after the hammer has been fully cooked and released in a manner to be described hereinafter.

From the above description, it can be seen that, when the lever H0 is rocked clockwise (Fig. 3),

, a slip inserted the link I29 is moved to the right around the rod 91 as a fulcrum, and, at the same time,- the pawl I I1 is moved to the right around the same rod 91, thus, through the engagement of its shoulder I I8 with the flange H9, rocking the arm I20 clockwise around the center of the rod 91. As the link I29 and the pawl H1 are being rocked around the center of the rod 91, the cam slot I28 of the link will, through the arm I26, rock the cooking pawl H1 clockwise around its pivot stud I09 as said pawl H1 is being rocked around the center of the rod 91 during the time the arm I20 is being rocked clockwise in the manner described above. During this clockwise movement of the arm I20, the spring IOI rocks the hammer arms 95 and 99 clockwise, thus raising the platen I00 away from the type wheels to cook the hammer. The movement of the link I29 to the right, as above described, and the simultaneous movement of the arm I20 clockwise stretch the spring I46, thus putting a sufficient tension therein to take the impression from the type wheels 11 on the inserted slip when the shoulder H8 of the cooking pawl I I1 slips underneath the flange I I9 of the arm I20 due to the continued clockwise movement of the pawl H1 around the stud I09. When this release of the arm I20 from the pawl H1 takes place, the tension of the spring I49 overcomes the strength of the spring IOI, causing a very quick clockwise movement of the arms 95 and 96 to cause the platen I00 to take an impression from the type wheels, as above mentioned. This overcoming of the spring IOI is the last movement of the arms 95 and 95, which is i. the actual overthrow equal to the distance of the clearance between the flange H9 and the side of the fork of the arm 95. At the time the printing takes place. the buffer arm I08 strikes the pin I06, thus absorbing the shock of the spring I49 to prevent the excessive wear on the flange H9.

The actual impression is made at approximately the same time that the forward end of the key reaches the bottom of its downward stroke, and. when the key is released, the key coupler 9|, as above mentioned, moves clockwise to its normal position, whereupon the arm III, through the links H2 and H5 and the lever H3, rocks the lever IIB counter-clockwise to its normal position and the pawl H1 is restored to the position shown in Fig. 3 by the cam slot I28 acting on the arm I26 as the link I29 is moved to its normal position.

When the instant machine is operated without therein, there is no need for operating the printing mechanism. The present invention, therefore, provides means for rendering the printing mechanism inactive when the machine is operated without a slip therein. The means by which this result is accomplished will now be described.

A feeler I3I (Figs. 1 and 2) is provided for controlling the operativeness of the printing mechanism. The feeler I3I is pivotally mounted on a stud I32 secured in the left printer frame 19, and the rearward portion of said feeler is provided with a slot I33, through which projects the rod 91. The feeler I3I has pivoted thereto an arm I34 having an arcuate-shaped slot I35, through which projects a stud I36 carried by the lever H3. In the normal position of the lever I I3, the stud I36 coacts with the wall of the upper end of the slot I35 to hold the feeler I3I in its normal ineffective position, against the action of a spring I31 connected to the feeler I3I and to an inking ribbon to a stud (not shown) mounted in theprinter frame 19. v a

The instant machine is provided with a slip table I38 having guide flanges I39 (Figs. 1, 6, and B and a chute I40 for guiding the slip 94 into position to have the total amount printed thereon. The table I38 and the integral chute I40 are slidably mounted on a plate I4I provided with an ear I42, which is bifurcated to embrace a rod [49 secured in the printer frames 19 and 80. This plate MI is also secured by means of screws I50 to a pair of brackets II (Figs. 1 and 6) secured to the cabinet 62. The table I38 has a threaded stud I52 projecting through a guide slot I53 in the plate I 4| and a thumb nut I54 is used to lock the table in any adjusted position, A headed stud I55 acts as a stop for and assists in guiding the table I38. To permit easy access I56 (Fig. 6) carried on spools I51, the table may be slid forward after the thumb nut I54 is loosened. The ribbon feed mechanism is not shown. The chute I46 is provided with an aperture I68 in both the top and the bottom sections'thereof, with which aperture the feeler I 3| is adapted to cooperate to control the operativeness of the printing mechanism.

When the key coupler 9I and the arm III are rocked counter-clockwise, through the depression of a key 64, the lever H3 is likewise rocked counter-clockwise. Such movement of the lever II3 will move the stud I36 downwardly in the slot I 35, thereby permitting the spring I 31 to rock the feeler I3I counter-clockwise to cause the latter to move towards the aperture I58 in the chute I40, and if, at this time, there is no slip 94 in the chute I40, the free end of the feeler I3I will move through the aperture I58 in both the top and the bottom sections of the chute I40. When the feeler I3I moves counter-clockwise to the extent just mentioned, a tail I59, formed integral with the rear end of the feeler I3 I, will engage a notch I60 formed in the pawl H1 and rock the latter clockwise to move the shoulder II8 below the flange II9. Then, upon the clockwise movement of'the lever I I6 and the pawl I I1 around the center of the rod 91 preparatoryto operation of the printing hammer, the shoulder H3 on the pawl II1, being below and out of cooperative relationship with the flange II9 on the arm I20, cannot rock. the hammer arms 95 and 96. Consequently, the printing hammer will not be actuated, due to the absence of a slip 94 on the table I38.

.On the other hand, if a slip 94 is inserted in the chute I40 and the machine operated, the feeler I3I will pass through only the aperture I58 in the top section of the chute I40 and then contact the inserted slip, which arrests downward movement of the feeler I3I, and therefore this short counter-clockwise movement of the feeler I3I is insufiicient to engage the tail I59 with thenotch I66 in the pawl II1; consequently the shoulder H8 thereof will remain in a position for coacting with the flange II9 to rock the arm I26 clockwise to cock the hammer arms 95 and 96, whereupon the platen I 60 will cause a print on the inserted slip 94.

To obviate any fraudulent manipulation of the present machine at the end of the down stroke of the key or at the end of the up stroke, when the door I03 is open, by manual operation, of said printing hammer any number of times to print without recording amounts on a plurality of slips each of such amountsin the totalizer, the present preventing invention provides locking means for operation of the printing hammer during such times, thereby assuring that all amounts printed on the slips are properly recorded in the totalizer. The means for accomplishing this result will now be described.

The right-hand arm ing hammer is provided with a flange I6I. Pivotally mounted ona stud I62 secured in the frame 80 is a pawl I63 provided with an arcuate-shaped flange I 64 concentric with the pivotal point of the arm 96. Loosely mounted on the rod 91 is a lever I65, the upper arm of which carries a stud I66, against which the pawl I63 isnormally held by a spring I61. The normal position of the pawl I63 is such that the flange I 64 is directly in the path of travel of the flange I 6| on the arm 96 at the beginning and end of a machine operation and also at the end of the down stroke of the key, which is immediately after taking an impression from the type wheels 11. When the pawl I63 is in this position, it will prevent'manual operation of the printing hammer. The lower arm of the lever I65 (Fig. 2) is provided with an irregularly-shaped cam slot I68, through which projects a stud I69 carried by one arm of the lever I10 secured to the shaft H4, As heretofore described, the shaft IE4 is rotated first counter-clockwise and then clockwise through the movement imparted to the key coupler SI by the operation of the key (Fig. 4). The configuration of the slot I68 in the lever I65 is such that, during the counter-clockwise movement of the lever I10, the stud I69 'will cam the lever I65 first counter-clockwise and then clockwise back to its normal position. Upon the counter-clockwise movement of the lever I 65, the stud I66 will coact with the pawl I63 to rock the latter clockwise against the action of the spring I61 to remove the upper end of the flange I 64 out of the path of movement of the flange I6I on the arm 96 to permit operation of the printing hammer after the adjustment of the type wheel 11 is completed, which occurs near the end of the downward movement of the key 64. Immediately after the flange I6I clears the upper end of the flange I64, the lever I65 receives its clockwise movement back to normal position, whereupon the spring I61 tends to rock the pawl I63 counter-clockwise to its normal position. However, at this time, the arm 96 has moved sufliciently clockwise so that the arcuate-shaped side of the flange I64 will bear lightly against the flange I6I without interfering with the clockwise movement thereof during the cocking of the hammer. When the printing hammer is rocked counter-clockwise to take an impression from the type wheels 11, the flange I 6| on the arm 96 will move from beneath the flange I 64 on the pawl I 63, whereupon the spring I61 will move the ,pawl I63 farther counter-clockwise to position the upper end of the flange I64 thereof in the path of travel of the flange I 6| on the arm 96, thereby preventing a repeat operation of the printing mechanism after the regular impression has been taken.

Upon the return clockwise movement of the shaft H4 and the lever-I10 to their normal positions, the lever I65 is again rocked first counterclockwise and then clockwise through the coaction of the stud I69 with the cam slot I68, there by operating the pawl|63 in the .same manner as that above described, and leaves the pawl I63 in the path of the flange I6I at the end of the machine operation to prevent any manual cocking of the printing hammer between operations of the machine.

as (Fig. n of the print Operation The interlock mechanisms provided b the present invention are simple in construction, inexpensive to manufacture, and positive in their operation. Such mechanisms prevent any fraudulent manipulation of the machine in a manner previously described herein, as well as render the printing mechanism inoperable when the machine is operated without a slip therein.

Since the operation of the above-mentioned interlock mechanisms has been thoroughly discussed previously herein, it is not thought necessar to repeat a detailed description thereof.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

What is claimed is:

1. In a machine adapted to print on inserted record material, the combination of type carriers; a platen for printing from said type carriers; driving connections for cocking the platen, including a pawl normally in a position to be effective to cock the hammer when the driving connections are operated; and a feeler to feel for the presence of record material in the machine, an integral part Of the feeler coacting with the pawl to move the pawl out of effective position when no slip is present in the machine, to disable the driving connections to thereby prevent cocking of the hammer.

2. In a machine of the class described, having a. receptacle to receive an insertable slip, said receptacle provided with an aperture, a plurality of type carriers; impression means operable to take an impression from said type carriers and print the same on an inserted slip; operating mechanism for the impression means, including a pawl normally in position to drive the impression means but movable out of driving position; means including a feeler element movable through the aperture in said receptacle when no slip is present in the receptacle; and a projection forming an integral part of said feeler coacting with said pawl when the feeler enters said aperture to move said pawl out of driving position to thereb prevent operation of the impression means.

3. In a machine of the class described, having a plurality of operating keys; a plurality of type wheels differentially adjustable under control of said keys; and a coupler associated with said keys and adapted to be actuated thereby, the combination of a receptacle for receiving an insertable slip; a lever; connecting means between said coupler and said lever for rocking the lever upon actuation of the coupler; pivotally mounted impression means operable to take an impression from said type wheels to print the same on an inserted slip; a spring normally urging said impression means into cooperative relationship with said type wheels; a pivotally mounted arm operatively connected to said impression means and provided with a flange; a pawl pivotally mounted on said lever and movable therewith, said pawl being provided with a shoulder normally engaging said flange so that upon pivotal movement of the lever the shoulder will normally coact with the flange on said arm to rock the arm, together with the impression means, against the action of the spring; means to rock the pawl on its pivot until the shoulder clears the flange, whereupon said spring rocks said impression means into cooperative relationship with the type wheels; a notch in said pawl; and means for coacting with said receptacle which, when the machine is operated without a slip in said receptacle, coacts also with the notch in said pawl to rock the latter to cause the shoulder thereon to move beneath the flange on the arm to render the impression means inoperable.

DANIEL K. HUGHES. MARY KLOSTERMAN,

Erecutria: 0f the Estate of Joseph J. Klosterman,

Deceased. 

